TY  - BOOK
AU  - Richards, James A  .
AU  - Sears,Francis westen  .
AU  - Wehr,Russel M  .
AU  - Zemansky,Mark W  .
TI  - Modern university physics / 
U1  - 539 
PY  - 1960///
CY  - London : 
PB  - Addison-Wesley Publishing Company , 
ER  -